package org.cloud.mall.framework.aspectj;

import com.alibaba.fastjson.JSON;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.lang.RandomStringUtils;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.cloud.mall.common.constant.KafkaConstants;
import org.cloud.mall.common.utils.DateUtils;
import org.cloud.mall.common.utils.IdUtils;
import org.cloud.mall.common.utils.ServletUtils;
import org.cloud.mall.common.utils.StringUtils;
import org.cloud.mall.framework.aspectj.lang.SysApiLog;
import org.cloud.mall.framework.aspectj.lang.annotation.Log;
import org.cloud.mall.framework.aspectj.lang.enums.BusinessStatus;
import org.cloud.mall.framework.kafka.KafkaProducerManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpMethod;
import org.springframework.stereotype.Component;
import org.springframework.validation.BindingResult;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.HandlerMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.net.InetAddress;
import java.util.Collection;
import java.util.Date;
import java.util.Map;

/**
 * 操作日志记录表
 *
 * @Creator: 张占宇
 * @CreateTime: 2023年8月8日 下午16:59
 */
@Aspect
@Component
public class LogAspect {

    private static final Logger log = LoggerFactory.getLogger(LogAspect.class);
    ThreadLocal<Date> startTime = new ThreadLocal<>();
    // 一分钟，即1000ms
    private static final long MAX_INTERFACE_RUNTIME = 1000;

    /** 服务唯一编号 */
    @Value("${spring.application.name}")
    private String appId;

    /** 是否启用日志 */
    @Value("${spring.kafka.enable-status}")
    private Boolean enableStatus;

    private final ObjectMapper mapper;

    @Autowired
    public LogAspect(ObjectMapper mapper) {
        this.mapper = mapper;
    }

    @Autowired
    private KafkaProducerManager kafkaProducerManager = new KafkaProducerManager();

    @Before(value = "@annotation(controllerLog)")
    public void doBefore(JoinPoint joinPoint, Log controllerLog) {
        //开始计时
        startTime.set(new Date());

        for (Object object : joinPoint.getArgs()) {
            if (object instanceof MultipartFile
                    || object instanceof HttpServletRequest
                    || object instanceof HttpServletResponse) {
                continue;
            }
            try {
                if (log.isDebugEnabled()) {
                    log.debug(
                            joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName()
                                    + " : request parameter : " + mapper.writeValueAsString(object)
                    );
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * 处理完请求后执行
     *
     * @param joinPoint 切点
     */
    @AfterReturning(pointcut = "@annotation(controllerLog)", returning = "jsonResult")
    public void doAfterReturning(JoinPoint joinPoint, Log controllerLog, Object jsonResult) throws Throwable {
        handleLog(joinPoint, controllerLog, null, jsonResult);
    }

    /**
     * 拦截异常操作
     * 
     * @param joinPoint 切点
     * @param e 异常
     */
    @AfterThrowing(value = "@annotation(controllerLog)", throwing = "e")
    public void doAfterThrowing(JoinPoint joinPoint, Log controllerLog, Exception e) {
        handleLog(joinPoint, controllerLog, e, null);
    }

    protected void handleLog(final JoinPoint joinPoint, Log controllerLog, final Exception e, Object jsonResult) {
        try {
            SysApiLog sysApiLog = new SysApiLog();
            if (StringUtils.isNotBlank(ServletUtils.getRequest().getHeader("reqId"))) {
                sysApiLog.setLogId(ServletUtils.getRequest().getHeader("reqId"));
            }else {
                sysApiLog.setLogId(IdUtils.simpleUUID());
            }
            sysApiLog.setAppId(appId);
            sysApiLog.setUserId(appId);
            sysApiLog.setStatus(BusinessStatus.SUCCESS.name());
            sysApiLog.setCode(200);
            if (e != null) {
                sysApiLog.setStatus(BusinessStatus.FAIL.name());
                sysApiLog.setErrorMessage(StringUtils.substring(e.getMessage(), 0, 2000));
                sysApiLog.setCode(500);
            }
            // 设置方法名称
            String className = joinPoint.getTarget().getClass().getName();
            String methodName = joinPoint.getSignature().getName();
            sysApiLog.setClassMethod(className + "." + methodName + "()");
            sysApiLog.setDealIp(ServletUtils.getRequest().getRemoteAddr());
            // 完整请求路径
            sysApiLog.setUrl(ServletUtils.getRequest().getRequestURI());
            // 设置请求方式
            sysApiLog.setHttpMethod(ServletUtils.getRequest().getMethod());
            InetAddress address = InetAddress.getLocalHost();
            // 设置本机地址
            sysApiLog.setHostIp(address.getHostAddress());
            // 处理注解参数
            getControllerMethodDescription(joinPoint, controllerLog, sysApiLog, jsonResult);
            // 发送日志数据
            if (enableStatus) {
                kafkaProducerManager.sendMessage(KafkaConstants.TOPIC_TEST, sysApiLog);
            }
        } catch (Exception exp) {
            // 记录本地异常日志
            log.error("==前置通知异常==");
            log.error("异常信息:{}", exp.getMessage());
            exp.printStackTrace();
        }
    }

    /**
     * 获取注解中对方法的描述信息 用于Controller层注解
     * 
     * @param controllerLog 日志
     * @param sysApiLog 服务日志
     * @throws Exception
     */
    public void getControllerMethodDescription(JoinPoint joinPoint, Log controllerLog, SysApiLog sysApiLog, Object jsonResult) throws Exception {
        // 服务业务编号
        sysApiLog.setProductKey(RandomStringUtils.randomNumeric(6));
        // 服务唯一编号
        sysApiLog.setDataKey(RandomStringUtils.randomNumeric(8));
        // 接口请求参数
        if (controllerLog.isSaveRequestData()) {
            setRequestValue(joinPoint, sysApiLog);
        }
        // 接口返回参数
        if (controllerLog.isSaveResponseData() && StringUtils.isNotNull(jsonResult)) {
            sysApiLog.setRsp(StringUtils.substring(JSON.toJSONString(jsonResult), 0, 2000));
        }
        // 接口花费时间
        if (StringUtils.isNotNull(jsonResult)) {
            Date reqTime = startTime.get();
            Date rspTime = new Date();
            long totalRunTime = rspTime.getTime() - reqTime.getTime();
            log.info("response parameter : " + mapper.writeValueAsString(jsonResult));
            String pointcutPath = joinPoint.getTarget().getClass().getName() + "." + joinPoint.getSignature().getName();
            if (totalRunTime > MAX_INTERFACE_RUNTIME) {
                log.error(getClass().getSimpleName() + " totalRuntime: {} ms, PointcutPath: {}, PointcutArgs: {}, response: {}", totalRunTime, pointcutPath, joinPoint.getArgs(), jsonResult);
            } else {
                log.info(getClass().getSimpleName() + " totalRuntime: {} ms,  PointcutPath: {}", totalRunTime, pointcutPath);
            }
            // 请求时间
            sysApiLog.setReqTime(DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS, reqTime));
            // 返回时间
            sysApiLog.setRspTime(DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS, rspTime));
            sysApiLog.setSpendTime(totalRunTime);
        }
    }

    /**
     * 获取请求的参数，放到log中
     * 
     * @param sysApiLog 服务日志
     * @throws Exception 异常
     */
    private void setRequestValue(JoinPoint joinPoint, SysApiLog sysApiLog) {
        String requestMethod = sysApiLog.getHttpMethod();
        if (HttpMethod.PUT.name().equals(requestMethod) || HttpMethod.POST.name().equals(requestMethod)) {
            String params = argsArrayToString(joinPoint.getArgs());
            sysApiLog.setReq(StringUtils.substring(params, 0, 2000));
        } else {
            Map<?, ?> paramsMap = (Map<?, ?>) ServletUtils.getRequest().getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
            sysApiLog.setReq(StringUtils.substring(paramsMap.toString(), 0, 2000));
        }
    }

    /**
     * 参数拼装
     */
    private String argsArrayToString(Object[] paramsArray) {
        String params = "";
        if (paramsArray != null && paramsArray.length > 0) {
            for (Object o : paramsArray) {
                if (StringUtils.isNotNull(o) && !isFilterObject(o)) {
                    try {
                        Object jsonObj = JSON.toJSON(o);
                        params += jsonObj.toString() + " ";
                    } catch (Exception e) {

                    }
                }
            }
        }
        return params.trim();
    }

    /**
     * 判断是否需要过滤的对象。
     * 
     * @param o 对象信息。
     * @return 如果是需要过滤的对象，则返回true；否则返回false。
     */
    @SuppressWarnings("rawtypes")
    public boolean isFilterObject(final Object o) {
        Class<?> clazz = o.getClass();
        if (clazz.isArray()) {
            return clazz.getComponentType().isAssignableFrom(MultipartFile.class);
        } else if (Collection.class.isAssignableFrom(clazz)) {
            Collection collection = (Collection) o;
            for (Object value : collection) {
                return value instanceof MultipartFile;
            }
        } else if (Map.class.isAssignableFrom(clazz)) {
            Map map = (Map) o;
            for (Object value : map.entrySet()) {
                Map.Entry entry = (Map.Entry) value;
                return entry.getValue() instanceof MultipartFile;
            }
        }
        return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse
                || o instanceof BindingResult;
    }
}
